Four-dimensional N=1 ZNxZM orientifolds

被引:94
|
作者
Zwart, G [1 ]
机构
[1] Univ Utrecht, Inst Theoret Phys, NL-3508 TA Utrecht, Netherlands
关键词
superstrings; open strings; orientifold;
D O I
10.1016/S0550-3213(98)00288-0
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We calculate the tadpole equations and their solutions for a class of four-dimensional orientifolds with orbifold group Z(N) X Z(M), and we present the massless bosonic spectra of these models. Surprisingly, we find no consistent solutions for the models with Z(2) X Z(4) and Z(4) X Z(4) Orbifold groups. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:378 / 392
页数:15
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